1. (book question end of ch. 5 - q2): for a population with a standard deviation of o = 20,
find the z-score for each of the following locations in the distribution. (hint: take a
look at the equation for finding z-scores and figure out what information you have been
given in the question and in the following "locations in the distribution.)
a. above the mean by 5 points.
b. above the mean by 2 points.
c. below the mean by 10 points.
d. below the mean by 30 points.